According to the American Cancer Society:
1. Insoluble fiber's cancer-fighting properties are due to the fact that it attacks certain bile acids, reducing their toxicity.
2. Soluble fiber may reduce LDL cholesterol without lowering HDL cholesterol. LDL is bad; HDL is good.
3. Soluble fiber slows down the digestion of starch. This may be beneficial to diabetics because, when you slow down the digestion of starch, you avoid the sharp rises in your blood sugar level that usually occurs following a meal.
4. It has been found that those who eat more oats are less likely to develop heart disease, a disease that is currently widespread in the United States.
5. The phytochemicals in oat may also have cancer-fighting properties.
6. Oats are a good source of many nutrients including vitamin E, zinc, selenium, copper, iron, manganese and magnesium. Oats are also a good source of protein.